Feeding mechanism of slicing machines



Feb. 17, 1931. CQULSQN 1,793,359

FEEDING MECHANISM OF SLICING' MACHINES Filed May 7, 1928 2 Sheets-Sheet l Y I vwenZ'or Edwin, Coulson 3 Mil/.- Ma -A013,,

Feb. 17, 1931 E, CQUL SON FEEDING MECHANISM OF SLICINQT MACHINES Filed May 7, 1928 2 Sheets-Sheet 2 I un IL 1 l x l l v I l I 1| llPl +1 1- 1-1-- l'nuenlfoi' Edwm, Goa/90m I Patentedeb.

nnw nv-c ounson, 40F oH Isw ro K, mam ENGLAND a i'nnnnm MECHANISM or sLIcI GivrAoHiNns Application 'fi led m 751 928, Serial No. 275,925,:a a i lr eat mji'tain u e 1,1 1 527. 2

- "Thisinv ention has reference to improve-.

v mentsin or relating to the feeding mechanism'of slicing machines; -V

In connection with'slicing machines itis 5 usual to provide the slicing-table with a feed screw-andnut mechanism for permitting of therapid initial adjustment of the meat-rem V ti'vely to theiknifeedge'pr'ior-to the coinmencenie'nt ofI-a slicingoperation and itis 1 found 'in practicethat inefiecting the'afo'resaid adjustment it frequently happens that the feed screw is rotated too far with there Qsult thatth'egnut becomes disengaged from .the thread of; the screw thereby-necessitating '15 a-re'latively tedious operation before the reengagement of the nut and the' thread ofthe v screw can be obtained. In connectionwith slicing machinesitis found desirable also that the slicing table shouldlbe capable of being readily detached from the machine in i order to permit ofqthe cleansing of'the table and the inspection {of the track when required. f I

The present invention has" for its objects the provision of an improifred 'me'ans forpermitting of the ready re eI i'gage'lnent :of thecomponents of the" initial" -adjustingfeed mechanism in the event of their inadvertent f -disen'gagenientfand thflplrovision of means for permittin of a ready detachmentbf the s slicing table desired. r i V The invention consists of an improved feed f mechanism of the kind hereinbefore referred to for use with slicing machines characterized by the provision in conjunction withthe feed screw nut of a worm wheel adapted to engage with the thread of the feed screw and to be capable of rotation upon the operation of the :said, screw only in a one way direction where byin the event of the disengagement of the nut from the feediscrew' a rotation of the feed screw in an opposite direction entails a'locking of the worm wheel ag'ainstrotation and subsequently causes the said wheel to be traversed alongthe screw thereby drawing; the nut into re-engagement with the feed screw. V

' The invention also resides in the provision of means for freeing the-nut from the feed sheet of d'rawing s,rwherein 1 for the slicing table the feed strewn r V I w wormwheel are engaged alsoby-the'nose of p r I screwing, as unlocking a slicing ta-ble' l'atchparticular reference to the accompanying I Figure lisfa part sectional side, elevation ofvthe'traversing mechanism for thesIicingr table." 7 c r Figure 2 is'a" detail view show'ing the put and a'portioii ofthe feed screwl'. 4 v 'Figure 3 is 1a side elevationlillustrating the manner 0f secu carriage, and s, it I Figui-e 4 is a 'detail view of 'the-latch" mechanism for' securing the rear -end Tof the slicing table to the "carriage;

, The "slicing table is fprovi'deda jacentdts slide with a nut "5 the threaded ermeat whereof, engages with a corresponcjlingly threaded portion 6? rotatably .rnounted in gbearin'gs" supported from the -"c'arria gei and I: j v

parallelly' disposed relative tothe pathjofthe; 7 5

slicing table: The aforesaidfnuti'is provided with a" forwardly-extending portion 5 which carries aspindles having rotatably" mounted Y,

thereon a worin' wheellTadapted tof mesh with Ate'one side thenut 5 is provided "with lateral projection tim underside of which so i engages 'a crank 11 fixedion the end of a shaft; i

12 rotatably "mounted relatively to 1 the -ear r riage}, The aforesaid shaftn12 hassecui'ed thereto at one 'e ndian' upwa'rdly'projecjting arm-13 whereby by gripping-the fixedhandle 16 by'the hand and engagingthethumb of" Q the same hand'fwith the '-a1'ni' 13' the' shaft 131 may'be'rockedzajs and fora purpose to be set forth hereinafter; The arm 13'is carried bylf a 'cylindricalxtb' o' ss 13? offer-greater diameter 1 V -s traver'si g mechanism ie lth l sliej 'neable a the w a than the shaft 12 said boss 13 having formed therein a helical slot 13 within which en-' gages a pins 1 1 connected to a'latch 14 which in its locking position engages a latch formed on the slicing table 15. It will be seen that upon rotating the shaft 12the boss 18 is rocked therewith wherebythe edges of the slot bear on theadjacent faces ofv the pin let and move the pin and hence the latch carried thereby in the direction of the arrow indicated in Figure 4. 1 5 a 1 The operation of the invention is as fol lows}; K H ii In the event of the feed screw, 6 being traversed too far and thereby: occasioning adis'- engagement of the nut 5 from the feed screw the continued rotation of the fed screw 6 merely results in a rotation in .a clockwise direction of the worm wheel? and thereby givesrise to a clicking noise which serves to the worm wheel 7 is locked against rota ion and .is thuscausedto move. along the feed screw inthe direction of the handlefi thereby dragging the nut 5 into re -engagement with thefeed screw 6 whereupon the feed screw can be manipulated in the ordinary manner for eifecting the adjustment of the slicing table15, NVhen it is desired. to remove the slicing table15 from the slicing'ma taking placein opposition to'the coilespring chine the small operating lever 13ispressed towards the right thereby effecting 'arota tion of the shaft12 upon which it is mounted and thus of the: crank .11 "secured thereto whereby-the said crank 11 isoztusedtolbear on the underside of the projection ses m nut and lift vthe, said nut out. of engagement with the feed screw, the lifting-movement 10, The continued rotation of the aforesaid operating lever13 through the coo-operation ofthe pin and helical slot mechanism of:

fects-a withdrawal of. the latch l tfr om the locking projection on thelslicing table 15.

- a The slicing table 15 is then free to be removed and permits of a readycleansingof the table and also access tothe track fon inspection purposes. 7 v V v j 1. A feed mechanisml of the kind herein before referred'to for use with slicing machines comprising a slicing table, a rotatable means for imparting a rotarymovement to the spindle whereby the motion so imparted can be causedtorock the crank arm so as to lift the feed screwnut from engagement with the feedscrew and so as to cause the projection connectedto the latching means to travel in the helical groove in the spindle so as to unlockthe said latching means'.i 1; i

2. A feed'mechanism'of the kind referred to for use with slicing machines comprising a slicing table, a rotatable-feed screw, a feed feedscrewtnut-into re-engagement with; the 7, feed screw,- a projection carriedz'bythe, feed screwnut, a rotatable spindle, a crank arm carried by said spindle and adaptedz to en-. gageon the underside of the. said projection, a latching means for-locking the slicing ta: ble to themachine, )a helical groove-formed in the spindle, a projecting member having connection with-the latching means and having a portion thereof adapted to engage within the helical groove and means for imparting a rotary; movement to the i said [spindle themovementof the said spindle in-oneIdirection simultaneously causing the crankarm to lift-the 'feed nut free from the feed screw and causing the portion of the projecting member engaging-within the helical groove to travel in the groove and to unlock the latch:

ing means" In testimony I haveihereunto set my-hand. f, I i I feed:s crew,"a feed screwnut fixed relatively V to saidislicing tablev and adapted to engage with said feed screw, alatching means for securing the table to the machine, a rotatable spindle, acrank arm carried by said spindle and adapted to bear on the underside of the feed screwunut, a projection on the latching V v a means, a helical groove formed in the spindle within which the projection; carried by the latching means is adapted to engage and 

